linux-kernel - Re: [PATCH] vdpa/mlx5: Add the support of set mac address

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Message-ID: <CACLfguWqut4mf1=ad58Eb=HZCMnbgxzDk5DbFge-JU0beB1aFg@mail.gmail.com>
Date: Tue, 9 Jul 2024 15:33:23 +0800
From: Cindy Lu <lulu@...hat.com>
To: Jason Wang <jasowang@...hat.com>
Cc: dtatulea@...dia.com, mst@...hat.com, parav@...dia.com, sgarzare@...hat.com, 
	netdev@...r.kernel.org, virtualization@...ts.linux-foundation.org, 
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [PATCH] vdpa/mlx5: Add the support of set mac address

On Mon, 8 Jul 2024 at 15:03, Jason Wang <jasowang@...hat.com> wrote:
>
> On Mon, Jul 8, 2024 at 2:56 PM Cindy Lu <lulu@...hat.com> wrote:
> >
> > Add the function to support setting the MAC address.
> > For vdpa/mlx5, the function will use mlx5_mpfs_add_mac
> > to set the mac address
> >
> > Tested in ConnectX-6 Dx device
>
> Great.
>
> >
> > Signed-off-by: Cindy Lu <lulu@...hat.com>
>
> I guess this should be part of the series "vdpa: support set mac
> address from vdpa tool" ?
>
yes, Will add this in next version
Thanks
cindy
> > ---
> >  drivers/vdpa/mlx5/net/mlx5_vnet.c | 23 +++++++++++++++++++++++
> >  1 file changed, 23 insertions(+)
> >
> > diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
> > index 26ba7da6b410..f78701386690 100644
> > --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
> > +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
> > @@ -3616,10 +3616,33 @@ static void mlx5_vdpa_dev_del(struct vdpa_mgmt_dev *v_mdev, struct vdpa_device *
> >         destroy_workqueue(wq);
> >         mgtdev->ndev = NULL;
> >  }
> > +static int mlx5_vdpa_set_attr_mac(struct vdpa_mgmt_dev *v_mdev,
> > +                                 struct vdpa_device *dev,
> > +                                 const struct vdpa_dev_set_config *add_config)
> > +{
> > +       struct mlx5_vdpa_dev *mvdev = to_mvdev(dev);
> > +       struct mlx5_vdpa_net *ndev = to_mlx5_vdpa_ndev(mvdev);
> > +       struct mlx5_core_dev *mdev = mvdev->mdev;
> > +       struct virtio_net_config *config = &ndev->config;
> > +       int err;
> > +       struct mlx5_core_dev *pfmdev;
> > +
> > +       if (add_config->mask & (1 << VDPA_ATTR_DEV_NET_CFG_MACADDR)) {
> > +               if (!is_zero_ether_addr(add_config->net.mac)) {
> > +                       memcpy(config->mac, add_config->net.mac, ETH_ALEN);
> > +                       pfmdev = pci_get_drvdata(pci_physfn(mdev->pdev));
> > +                       err = mlx5_mpfs_add_mac(pfmdev, config->mac);
> > +                       if (err)
> > +                               return -1;
> > +               }
> > +       }
> > +       return 0;
> > +}
> >
> >  static const struct vdpa_mgmtdev_ops mdev_ops = {
> >         .dev_add = mlx5_vdpa_dev_add,
> >         .dev_del = mlx5_vdpa_dev_del,
> > +       .dev_set_attr = mlx5_vdpa_set_attr_mac,
>
> Let's rename this as we will add the support for mtu as well or not?
>
sure ,will change this
Thanks
cindy
> Thanks
>
> >  };
> >
> >  static struct virtio_device_id id_table[] = {
> > --
> > 2.45.0
> >
>